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38results about How to "Avoid cleansing effect" patented technology

Method for simultaneously removing PM2.5 granules, SO2 and NOx from flue gas and recycling by-product

The invention discloses a method for simultaneously removing PM2.5 particles, SO2 and NOx of smoke gas and reclaiming byproducts. The smoke gas to be treated is introduced to a pulse corona electric field and absorption liquid is sprayed to purify the smoke gas at the same time; the pulse corona electric field is produced by an acicular corona wire connected with negative pulse high voltage and a netty metal electrode connected with positive pulse voltage; the absorption liquid is sprayed on the netty metal electrode to form liquid film; after the PM2.5 particles are charged, the PM2.5 particles move to the liquid film by electrostatic force and are adsorbed and caught by the liquid film; vapor and oxygen of the smoke gas are decomposed into O, OH, O3, HO2 and other oxidative free radicals; SO2 and NO of the smoke gas are oxidized into high valent state substances which are easy to absorb; subsequently, the substances are absorbed by the absorption liquid; and the reacted absorption liquid is crystallized through sensible heat drying of the smoke gas to be treated to generate reclaimable byproducts. The method realizes simultaneous removing of the PM2.5 particles, SO2 and NOx of the smoke gas and recycles the removed byproducts.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Vehicle-mounted air purification equipment without replacement of filter element

The invention discloses vehicle-mounted air purification equipment without replacement of a filter element. A dust removal filter screen, an on-off sealing valve I, an activated carbon filter layer and an induced draft fan are sequentially arranged inside the equipment; the on-off sealing valve I and the on-off sealing valve II are turned on; and multiple activated carbon heating wires are arranged inside the activated carbon filter layer, a vacuum pump is arranged above the activated carbon filter layer, and the vacuum pump is also connected with an exhaust emission pipe. The vehicle-mounted air purification equipment disclosed by the invention has an activated carbon regenerating function, and activated carbon regeneration treatment can be carried out when activated carbon in the equipment is saturated in adsorption, so that the problems of physical adsorption saturation, secondary pollution, high usage cost and the like are avoided, and the activated carbon can be used for a long time. After treatment by virtue of the vehicle-mounted air purification equipment disclosed by the invention, content of formaldehyde, benzene, methylbenzene, dimethylbenzene, TVOC and the like in the air in a vehicle is obviously lowered, the vehicle-mounted air purification equipment disclosed by the invention is high in purification efficiency and can continuously operate for a long time, the defects such as adsorption saturation and secondary pollution of other air purifiers are avoided, and the aim of purifying the air in the vehicle is achieved.
Owner:QINGDAO UNIV +1

Filter element replacement-free air purifying equipment

The invention discloses filter element replacement-free air purifying equipment which comprises a housing and a power supply as well as an air inlet switch seal valve, an air inlet dedusting filter screen, an activated carbon filter layer, an air outlet dedusting filter screen, an air outlet switch seal valve and an induced draft fan which are successively arranged in the housing; a plurality of activated carbon heating devices are arranged in the activated carbon filter layer which is also connected to a vacuum pump. The vacuum pump is also connected to a combustion catalyst. The filter element replacement-free air purifying equipment disclosed by the invention has a function of regenerating activated carbon. When the activated carbon in the equipment reaches adsorption and saturation, the activated carbon can be automatically regenerated, so that problems of physical adsorption and saturation, secondary pollution, high using cost and the like are avoided. Through verification, contents of formaldehyde, benzene, methylbenzene and the like in indoor air are remarkably reduced if the air is treated by the filter element replacement-free air purifying equipment. The filter element replacement-free air purifying equipment disclosed by the invention is high in purifying efficiency and can operate continuously for a long time, avoids the defects, such as adsorption and saturation and secondary pollution, of other air purifiers, and achieves the purpose of purifying indoor air.
Owner:QINGDAO UNIV

Spent fuel storage module

The invention relates to a spent fuel storage module which is characterized in comprising a middle container (8) arranged in a storage module boundary and a fuel container (9) arranged in the middle container (8). The storage module boundary is formed by connected components of a storage module concrete structure (7) and a common channel wall (6). Spent fuel storage modules positioned at two sides of the common channel (1) communicate with the common channel (1) through fuel access channels (5) arranged on the common channel wall (6). The spent fuel storage module is suitable for two storage manners which are a dry storage manner and a wet storage manner, such that spent fuel storage modularization and unitization are realized. Also, an integral anti-shock design is adopted, such that accident risk is reduced. Long-time cooling of the spent fuel utilizes passive natural air convection, such that a risk of the loss of cooling capacity is greatly reduced, and nuclear power plant overall safety and economical efficiency are improved.
Owner:CHINA NUCLEAR POWER ENG CO LTD

Process method for refining crude tellurium

The invention discloses a process method for refining crude tellurium. The method is a tellurium refining process method comprising the steps of crude tellurium powder acid pickling, potential-controlled oxidation acid leaching, oxidation acid leaching residue washing, crude tellurium dioxide liquid making, electrodeposition liquid preparation through purification, electrodeposition, tellurium sheet boiling and washing, drying and casting. The method is simple and convenient to operate, cost is low, and technological process is simple, requirements on equipment are low, the recovery rate of tellurium in the whole technological process is high, the problems that a traditional tellurium refining technology is too long in production period and high in system occupation are avoided, a series of problems that the production cost is high, the operation intensity is high, tellurium and impurities are not separated thoroughly are solved, tellurium ingots with the purity higher than 99.99% canbe prepared through the method, and the method is suitable for wide application and popularization.
Owner:DAYE NONFERROUS METALS

Method for preparing sullage fertilizer

The present invention relates to a production method of a sludge fertilizer. In the method, the collected sludge, straw of crops and wormwood are covered and piled together orderly, repeatedly and uniformly; the sludge is used for covering for 21 days until the inner temperature reaches to 25 to 40 DEG C; the mixture is naturally fermented; after being mixed well, the mixture is piled again and is enclosed by the sludge for 21 days for sedimentation and slaking; and the sludge fertilizer can be prepared after the mixture is turned over. In the method, the harmful sludge is adopted to product helpful fertilizer, thus changing the waste into valuable materials and solving the problem of environmental pollution caused by the sludge. The application of the straw of crops in the field facilitates the improvement of the ecological environment of the crops and the realization of development of sustainable and renewable energy. The wormwood, which is used as the fertilizer, has excellent quality of the fertilizer and is high-quality raw material that is used for preparing fertilizers in the northern part of China. The application of the wormwood is in particular suitable for the field that has been fertilized for a plurality of years. The method requires no power equipment or capital investment, and has the advantages of low cost and no pollution. Thus the method is a production method that can be used for preparing fertilizers of original ecology in the natural ecological environment, according to the lunar solar terms and the difference in various areas.
Owner:TAIYUAN UNIV OF TECH

A method for preparing high-volume solid waste cementitious material by modifying phosphogypsum with quartz stone mud

The invention provides a method for preparing building cementitious materials from ardealite by means of artificial quartzite slurry modification. The ardealite is industrial solid waste and is used as a main raw material for the building cementitious materials. The method includes drying and grinding the ardealite which is the industrial byproduct waste, uniformly mixing the ardealite, cement andindustrial byproducts such as slag powder and fly ash with one another to obtain mixtures, adding the mixtures into water and blending the mixtures and the water to obtain thick slurry; mixing silicafume with artificial quartzite slurry under high-speed stirring conditions and activating the artificial quartzite slurry; sufficiently mixing and homogenizing the thick slurry and the artificial quartzite slurry with each other, then adding polymeric aluminum and / or other aluminum salt and polycarboxylic acid water reducing agents into the thick slurry and the artificial quartzite slurry and uniformly stirring the polymeric aluminum and / or the other aluminum salt, the polycarboxylic acid water reducing agents, the thick slurry and the artificial quartzite slurry to obtain the plastic cementitious materials with short coagulation time and high strength and ardealite dosage. The silica fume is an industrial byproduct. The polymeric aluminum and / or the other aluminum salt are used as admixtures. The method has the advantages that the ardealite can be directly used after being dried and ground without earlier-stage purification and ageing treatment, accordingly, the production cycle canbe shortened to a great extent, and the cost can be reduced; the building cementitious materials are high in industrial solid waste mixing amount, the optimal industrial solid waste mixing amount canreach 80%, in other words, 80% of the traditional silicate cement can be replaced, and the method has important significance in saving resources, increasing the industrial solid waste comprehensive utilization rate and protecting environments.
Owner:湖北冶金地质研究所

Drinking water storage tank

The invention discloses a drinking water storage tank, which realizes the purposes of pollution prevention, filtering and water purification. The drinking water storage tank comprises an inner tank body and an outer tank body which are respectively provided with a communication port; a flow guide noise elimination spiral plate surrounding the inner tank body is arranged in a space formed by the outer wall of the inner tank body and the inner wall of the outer tank body; the inner edge and the outer edge of the spiral plate are respectively connected with the outer wall of the inner tank body and the inner wall of the outer tank body; and a water inlet is formed in the outer tank body, and a water outlet is formed in the inner tank body. The drinking water storage tank can substitute a mounted flow stabilizing tank required by a common water tank, and has good use effects on pollution prevention, filtering and water purification; and in addition, owing to the spiral plate arranged in the outer tank body, a certain noise pollution can be reduced during injecting water into the water storage tank.
Owner:李英杰

Method for preparing cementitious materials with high mixing amounts of solid waste from quartzite slurry modified ardealite

The invention provides a method for preparing building cementitious materials from ardealite by means of artificial quartzite slurry modification. The ardealite is industrial solid waste and is used as a main raw material for the building cementitious materials. The method includes drying and grinding the ardealite which is the industrial byproduct waste, uniformly mixing the ardealite, cement andindustrial byproducts such as slag powder and fly ash with one another to obtain mixtures, adding the mixtures into water and blending the mixtures and the water to obtain thick slurry; mixing silicafume with artificial quartzite slurry under high-speed stirring conditions and activating the artificial quartzite slurry; sufficiently mixing and homogenizing the thick slurry and the artificial quartzite slurry with each other, then adding polymeric aluminum and / or other aluminum salt and polycarboxylic acid water reducing agents into the thick slurry and the artificial quartzite slurry and uniformly stirring the polymeric aluminum and / or the other aluminum salt, the polycarboxylic acid water reducing agents, the thick slurry and the artificial quartzite slurry to obtain the plastic cementitious materials with short coagulation time and high strength and ardealite dosage. The silica fume is an industrial byproduct. The polymeric aluminum and / or the other aluminum salt are used as admixtures. The method has the advantages that the ardealite can be directly used after being dried and ground without earlier-stage purification and ageing treatment, accordingly, the production cycle canbe shortened to a great extent, and the cost can be reduced; the building cementitious materials are high in industrial solid waste mixing amount, the optimal industrial solid waste mixing amount canreach 80%, in other words, 80% of the traditional silicate cement can be replaced, and the method has important significance in saving resources, increasing the industrial solid waste comprehensive utilization rate and protecting environments.
Owner:湖北冶金地质研究所

Mg6Al2(OH)18.4.5H2O nanosheet as well as preparation method and application thereof

The invention relates to the technical field of inorganic material preparation, in particular to a Mg6Al2(OH)18.4.5H2O nanosheet and a preparation method and application thereof. The method comprises the steps: with magnesium nitrate or magnesium chloride as a magnesium source, aluminum nitrate or aluminum chloride as an aluminum source and sodium hydroxide as an alkaline medium, back-dropwisely-adding a mixed solution of the magnesium source and the aluminum source rapidly added into a sodium hydroxide solution; and washing the obtained precipitate, re-dispersing the precipitate in water containing ethylene glycol, carrying out heat treatment in a microwave hydrothermal parallel synthesizer, carrying out hydrothermal treatment, putting the product into a microemulsion for preparing nano silicon dioxide, and heating to obtain the Mg6Al2(OH)18.4.5H2O nanosheet. The preparation method is special, reaction conditions are easy to control, raw materials are easy to obtain, reproducibility is good, and the prepared nanosheet is thin and good in dispersity and is expected to be applied to the fields of flame-retardant materials of plastics such as polypropylene and the like.
Owner:长治学院

Lime kiln capable of intermittently moving, uniformly adding lime and uniformly blowing air

ActiveCN110903041AEven intermittent movementAvoid uneven processingGas treatmentDispersed particle separationReciprocating motionLime kiln
The invention relates to the technical field of environmental protection, and discloses a lime kiln capable of intermittently moving, uniformly adding lime and uniformly blowing air. A waste gas purification device is arranged in a lime kiln body, a rotating wheel and a purification bin are arranged in the waste gas purification device, a third rotating shaft is connected to the rotating wheel, asecond connecting rod is connected to the third rotating shaft, an air pressure plate is connected to the second connecting rod, one end of the purification bin is connected with an air inlet pipe, and the other end of the purification bin is connected with an air outlet pipe. The invention discloses the lime kiln capable of intermittently moving, uniformly adding lime and uniformly blowing air. Waste gas enters the purification bin from the gas inlet pipe; due to the fact that the waste gas contains a plurality of impurities, the waste gas naturally falls on the air pressure plate, the air pressure plate purifies and extrudes the waste gas in the purification bin, then the waste gas is exhausted from the gas outlet pipe, the air pressure plate constantly reciprocates up and down at a constant speed along with continuous rotation of the rotating wheel to work and exhaust gas, and the purpose of purifying air at a constant speed is achieved.
Owner:柳州山海科技股份有限公司

Flexible recyclable material-based space consumption type heat dissipation working medium recycling method

The invention provides a flexible recyclable material-based space consumption type heat dissipation working medium recycling method. The method specifically comprises the steps of (1) estimating mass of a required liquid working medium according to a peak heat load, working time, an adopted working medium type and a working temperature of a spacecraft heat control system; (2) according to a demand of a consumption type heat dissipation apparatus on a working backpressure, setting a highest working backpressure; based on the estimation of the mass of the working medium and the highest working backpressure, estimating the volume of a gas working medium generated by evaporation in a working process of equipment; (3) selecting a flexible material to design a space consumption type heat dissipation working medium recycling apparatus, and enabling the internal volume of the recycling apparatus in a natural extension state to be greater than or equal to the volume of the gas working medium; and (4) recycling a space consumption working medium by combined use of the working medium recycling apparatus and the space consumption type heat dissipation apparatus. Necessary technical guarantee is provided for application of a space consumption type heat dissipation method to a long-term space navigation task.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

Detection method of migration volume of tea components in specially-flavored filter rod

The invention relates to a detection method of the migration volume of tea components in a specially-flavored filter rod. The detection method comprises the following steps: (1), determining the smoking breath number; (2), according to the smoking breath number, setting the required temperatures of heating chambers; (3), smoking; (4), analyzing the components in a filter tip. A device used in themethod uses a purified air flow for elution, so that background interference of complex smoke components generated in the actual cigarette combustion process is eliminated, the precision and the accuracy of a detection result are significantly improved, purification and enrichment operations of a complex sample during analysis and detection of migration of the components in the conventional specially-flavored filter rod to smoke are avoided, and influence of the complex smoke is reduced. The analysis method provided by the invention is simple, rapid, accurate, high in sensitivity, low in detection limit, effective, feasible, easy to operate, accurate and sensitive, and has a popularization and application value.
Owner:CHINA TOBACCO YUNNAN IND

Electronic control ammonia injection system

PendingCN109098822ASolve the unstable outputSolve the technical problem that the output is difficult to be accurateInternal combustion piston enginesExhaust apparatusExhaust gasTraffic volume
The invention discloses an electronic control ammonia injection system. The electronic control ammonia injection system comprises an ammonia storage tank, a flow collecting device and a pressure regulating valve, wherein the ammonia storage tank is used for storing and releasing ammonia, the flow collecting device is communicated with the ammonia storage tank and an ammonia output pipe for metering throughput of ammonia; the pressure regulating valve is arranged on the pipe between the ammonia storage tank and the flow collecting device for controlling the output pressure of the ammonia storage tank. The output pipe of the ammonia storage tank is provided with the flow collecting device to acquire of the jet flow of ammonia, thereby achieving the aim of precise output; the output end of the ammonia storage tank is provided with the structure of the pressure regulating valve to control the output pressure of the ammonia storage tank within a preset range, thereby achieving the effect ofstable output, effectively ensuring precise control and measurement of the ammonia output of the subsequent output process, ensuring that the output ammonia can meet the practical demands of exhaustpurification and avoiding waste leakage or incomplete purification.
Owner:科林蓝泰环境科技(长春)有限公司

Paint mist and dust purification device for furniture paint spraying

InactiveCN113648763AThe separation effect is sufficientEasy to useCombination devicesDispersed particle filtrationRatchetMechanics
The invention relates to the technical field of furniture, and discloses a paint mist and dust purification device for furniture paint spraying, the paint mist and dust purification device comprises a box body and a connecting pipe, the bottom of the connecting pipe is fixedly connected with a filter box, the inner side wall of the filter box is movably connected with an annular adsorption net, the front surface of the annular adsorption net is fixedly connected with a ratchet wheel, a half gear is rotationally connected to the inner front wall of the box body, a driving wheel is fixedly connected to the back face of the half gear, a movable frame is movably connected to the top of the fixed rail plate, and a connecting rod is fixedly connected to the right side of the movable frame. When the half gear rotates, the movable frame and the connecting rod are driven to move left and right, the connecting rod drives the ratchet wheel and the annular adsorption net to rotate by a certain angle through telescopic teeth, so that the position of the annular adsorption net for adsorbing and purifying paint mist changes intermittently, the same position of the annular adsorption net is prevented from being used for purifying the paint mist for a long time, the purification effect is improved, and the annular adsorption net does not need to be replaced frequently.
Owner:温州甜羽家具科技有限公司

Sterilization, disinfection and purification equipment

The invention discloses sterilization, disinfection and purification equipment, and belongs to the technical field of air purification equipment. The sterilization, disinfection and purification equipment comprises a base, a main power drive, an upper belt, a steering power drive, an upper stand, a lower stand, a lower belt and a compressor. The sterilization, disinfection and purification equipment is characterized by also comprising a high-temperature system, a shunt spraying system and a purification filtering system. The sterilization, disinfection and purification equipment solves the defects of photocatalyst purification, ozone purification and plasma purification, and is mainly applied to air purification, and the purification effect is remarkable in the actual use process.
Owner:曹小高

An air purification system for operating room and its control method

The invention discloses an air purifying system used for an operating room and a control method thereof. The air purifying system comprises a central controller, a data base, a pollution factor analysis unit, a risk analysis unit and an air purifying unit. The data base comprises a data extraction module. The pollution factor analysis unit comprises a sensor module and an analysis module. The air purifying unit comprises an air replacement module, an air purifying module and an air storage module. The control method of the air purifying system used for the operating room comprises the following steps of (1) sealing of the operating room and closing of a door of the operating room; (2) air pollution factor analyzing; (3) risk analyzing; and (4) air purifying. According to the air purifying system used for the operating room and the control method thereof, the air purifying system is redesigned, the air quality can be monitored, and risk results possibly caused by the air quality are analyzed so that air purifying can be implemented by medical workers according to the risk results conveniently, intelligent operating is realized, operation is convenient, and the problems of excessive purification and insufficient purification can be avoided. Meanwhile, the air purifying system provided by the invention is high in purification efficiency and pertinence.
Owner:宁波奉天海供氧净化成套设备有限公司

Process for providing a filled canister for an inhaler

There is disclosed a process for providing a filled canister (138) for an inhaler (1), in particular a process for supplying a canister (138) and filling the canister (138) with components of a medicament, which canister (138) is suitable for use in a pressurised metered dose inhaler, preferably a breath-actuate inhaler (1). The process comprises providing a canister (138) that is substantially filled with air at ambient conditions and sealing the opening of the canister (138), for example with a metering valve (134). A filling device dispenses a pressurised liquid and / or gas into the sealed, air-filled canister (138) through the metering valve (134). The pressurised liquid and / or gas comprises at least a propellant. The sealed, air-filled canister (138) is substantially devoid of propellant prior to the step of dispensing the pressurised liquid and / or gas. Thereafter the sealed canister (138) is substantially filled with at least some propellant and some air. Preferably the sealed canister (138) also contains a medicament. In the art, pressure-filled canisters are purged with propellant immediately before sealing to remove the air. The present process excludes the purging step and the sealed canisters (138) contain air and no propellant prior when sealed.
Owner:ASTRAZENCA UK LTD

Building wastewater and waste material separation treatment device

The invention discloses a building wastewater and waste material separation treatment device which comprises a solid-liquid separation device and a sewage purification device, the solid-liquid separation device comprises a shell, a smashing mechanism and a discharging mechanism, the shell is provided with a cavity and a feeding port communicated with the cavity, the smashing mechanism is arranged in the cavity and located below the feeding port, and the discharging mechanism is arranged in the cavity and located below the feeding port. The discharging mechanism is partially arranged in the cavity and located below the smashing mechanism, and the discharging mechanism partially extends out of the shell. The sewage purification device comprises a shell and a water purification mechanism arranged in the shell, a water inlet and a water outlet are formed in the shell, and the water inlet is communicated with the bottom of the shell through a pipeline. The crushing roller is mounted at the feed port of the solid-liquid separation device to crush the construction waste, so that the construction waste can be reused conveniently, and meanwhile, the sewage purification device is arranged to purify and utilize the construction waste water, so that the waste of a water source is avoided.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD

A lime kiln that adds lime evenly and blows air evenly in intermittent motion

ActiveCN110903041BEven intermittent movementAvoid uneven processingGas treatmentDispersed particle separationReciprocating motionLime kiln
The present invention relates to the field of environmental protection technology, and discloses a lime kiln that evenly adds lime and blows air evenly in intermittent motion. The main body of the lime kiln is equipped with a waste gas purification device, and the waste gas purification device is equipped with a runner and a purification bin inside. The wheel is connected with the rotating shaft three, the rotating shaft three is connected with the connecting rod two, the connecting rod two is connected with the air pressure plate, one end of the purification chamber is connected with the air intake pipe, and the other end of the purification chamber is connected with the air outlet pipe. In the lime kiln where lime is evenly added and blown evenly by intermittent movement, the exhaust gas enters the purification chamber from the intake pipe. Since the exhaust gas contains many impurities, it will naturally fall on the air pressure plate, and the air pressure plate will follow it in the purification chamber. Purify and extrude, then exhaust the exhaust gas from the outlet pipe, and the air pressure plate keeps reciprocating up and down at a constant speed with the continuous rotation of the runner to carry out work and exhaust, and achieve the purpose of purifying the air at a constant speed.
Owner:柳州山海科技股份有限公司

Provides a method of filling a canister for an inhaler

A process for filling a canister for an inhaler is provided. The canister may be filled with components of a medicament. The canister may be suitable for use in a pressurised metered dose inhaler, such as a breath-actuate inhaler. The process may include sealing the canister with air at ambient conditions. A filling device may dispense a pressurised liquid or gas into the sealed, air-filled canister through a metering valve. The pressurised liquid or gas may comprise at least a propellant. While pressure-filled canisters were previously purged with propellant immediately before sealing to remove the air, the present process may exclude the purging step.
Owner:ASTRAZENCA UK LTD

Space-consuming heat dissipation refrigerant recovery method based on flexible and recyclable materials

The invention provides a method for recovering space-consuming heat-dissipating working fluid based on flexible and recyclable materials. The specific process is: (1) According to the peak heat load, working time, working medium type and working temperature of the spacecraft thermal control system Estimate the quality of the required liquid working fluid; (2) Set the maximum working back pressure according to the demand of the consumable cooling device for working back pressure; Estimate the volume of the generated gaseous working medium; (3) select a flexible material to design a space-consuming heat dissipation working medium recovery device, so that the internal volume of the recovery device in a naturally extended state is greater than or equal to the volume of the gaseous working medium; (4) The working medium recovery device is used in conjunction with the space-consuming heat sink to realize the recovery and reuse of the space-consuming working medium. The invention provides indispensable technical support for the application of the space-consuming heat dissipation method in long-term space missions.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

A spent fuel storage module

The invention relates to a spent fuel storage module which is characterized in comprising a middle container (8) arranged in a storage module boundary and a fuel container (9) arranged in the middle container (8). The storage module boundary is formed by connected components of a storage module concrete structure (7) and a common channel wall (6). Spent fuel storage modules positioned at two sides of the common channel (1) communicate with the common channel (1) through fuel access channels (5) arranged on the common channel wall (6). The spent fuel storage module is suitable for two storage manners which are a dry storage manner and a wet storage manner, such that spent fuel storage modularization and unitization are realized. Also, an integral anti-shock design is adopted, such that accident risk is reduced. Long-time cooling of the spent fuel utilizes passive natural air convection, such that a risk of the loss of cooling capacity is greatly reduced, and nuclear power plant overall safety and economical efficiency are improved.
Owner:CHINA NUCLEAR POWER ENG CO LTD

a mg 6 al 2 (oh) 18 4.5h 2 oNanosheets and their preparation methods and applications

The invention relates to the technical field of preparation of inorganic materials, specifically a kind of Mg 6 al 2 (OH) 18 4.5H 2 O nanosheets and their preparation method and application. In the method, magnesium nitrate or magnesium chloride is used as a magnesium source, aluminum nitrate or aluminum chloride is used as an aluminum source, and sodium hydroxide is used as an alkaline medium. Quickly back drop into the sodium hydroxide solution, wash the obtained precipitate and redisperse it in the water containing ethylene glycol, after heat treatment in the microwave hydrothermal parallel synthesizer, then carry out the hydrothermal treatment, and then put it in the preparation of nano-dioxide Mg is obtained after heating in the microemulsion of silicon 6 al 2 (OH) 18 4.5H 2 O nanosheets. The preparation method of the present invention is special, the reaction conditions are easy to control, the raw materials are easy to obtain, and the reproducibility is good. The prepared nanosheets are thin and have good dispersibility, and are expected to be applied to the fields of flame-retardant materials such as polypropylene and other plastics.
Owner:长治学院

Air purification device for environmental pollution control

The invention relates to the technical field of air purification equipment, in particular to an air purification device for environmental pollution control, the device comprises a purification box and a support base for fixing the purification box, and further comprises: a suction assembly, which is located on the purification box; a purification cylinder, which is communicated with the purification box and the suction assembly respectively; a filtering mechanism, which is positioned in the purification box and is communicated with the purification cylinder; wherein the filtering mechanism comprises a cleaning assembly and a pressurizing assembly, the cleaning assembly is located in the purification cylinder, the pressurizing assembly is in linkage connection with the suction assembly, the cleaning assembly comprises a second air inlet pipe and a spoiler, and the pressurizing assembly comprises a filtering part; and a purification assembly, which is communicated with the purification cylinder. The air purification device for environmental pollution control has the advantages that the air purification device is novel in structure, the purification effect can be improved, and convenience is provided for workers.
Owner:陈金花

Method for detecting royal jelly component migration quantity in filter stick

The invention relates to a method for detecting royal jelly component migration quantity in a filter stick. The method includes the steps of firstly, determining a puff number; secondly, setting a required heating cavity temperature according to the puff number; thirdly, smoking; fourthly, analyzing components. The method has the advantages that purified air flow is used to perform elution, complex smoke component background interference generated during actual cigarette combustion is eliminated, the precision and accuracy of the detecting result are increased evidently, and complex sample purification and enrichment operation in the conventional analysis and detection of the components, migrating to smoke, of a specially perfumed filter stick is avoided. The method has the advantages thatthe equipment used by the method is simple in structure, the situation that conventional temperature consistency cannot reflect oral cavity smoking temperature is avoided, and influence of complex smoke is reduced.
Owner:CHINA TOBACCO YUNNAN IND
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